Portfolio comparison
Norton Co vs John L. Mason
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Norton Co
Patents indexed
1
Year range
1995
Most recent
1995
materialsmechanicalconsumer_electronics
Top Patents1 enriched
US 5401560· 1995
How to Make Durable Non-Slip Surfaces Using Electron Beam Curing
Activity by Decade
1990s1
Top Patents1 enriched
US 22186· 1858
John Mason's 1858 Patent for the Mason Jar Lid
Activity by Decade
1850s1
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